package com.kongfanyu.springcloud.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;

@Service
public class PaymentService {

    public String paymentInfo_OK(Integer id){
        return "线程池："+Thread.currentThread().getName()+" paymentInfo_OK,ID："+id+"\t"+"O(∩_∩)O哈哈~";
    }

    //超时3秒
    @HystrixCommand(fallbackMethod = "paymentInfo_TimeoutHandler",commandProperties = {
            @HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds",value="5000")
    })
    public String paymentInfo_Timeout(Integer id){
        int timeNumber = 3;
        try {
            TimeUnit.SECONDS.sleep(timeNumber);
        }catch (Exception e){e.printStackTrace();}
        return "线程池："+Thread.currentThread().getName()+" paymentInfo_Timeout,ID："+id+"\t"+"O(∩_∩)O哈哈~耗时秒数:"+timeNumber;

        /*
        int a = 10 / 0;
        return "线程池："+Thread.currentThread().getName()+" paymentInfo_Timeout,ID："+id+"\t"+"O(∩_∩)O哈哈~耗时秒数:";
        */
      }

    public String paymentInfo_TimeoutHandler(Integer id){
        return "线程池："+Thread.currentThread().getName()+" paymentInfo_TimeoutHandler,系统繁忙或运行报错；请稍候<br>ID："+id+"\t"+"o(╥﹏╥)o";
    }

    //==========服务熔断======
    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback",commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled",value = "true") ,//是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold",value = "10"),//请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds",value = "10000"),//时间窗口期
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage",value = "60") //失败率达到多少后跳闸
    })
    public  String paymentCircuitBreaker(@PathVariable("id") Integer id){
        if(id <0){
            throw  new RuntimeException("====ID不能为负数=======");
        }
        String serailNumber = IdUtil.simpleUUID();
        return Thread.currentThread().getName()+"<br>"+"调用成功，流水号:"+serailNumber;
    }
    public String paymentCircuitBreaker_fallback(Integer id){
        return "id 不能负数，请稍后再试，o(╥﹏╥)o id:"+id;
    }
}
